2004Final results
2004 election for Massachusetts State Senate: Plymouth–Bristol 1
Massachusetts State Senate · Massachusetts
Marc R. Pacheco (D) won re-election with 73.9% of the vote, defeating Donald J. Jonah (R) by 47.8 points.
Marc R. PachecoDemocrat · winner · incumbent
73.9%51,783
Donald J. JonahRepublican
26.1%18,289
70,072 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 2004
Races before and after
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)